/*
 * Copyright 2012 The Netty Project
 *
 * The Netty Project licenses this file to you under the Apache License,
 * version 2.0 (the "License"); you may not use this file except in compliance
 * with the License. You may obtain a copy of the License at:
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 * License for the specific language governing permissions and limitations
 * under the License.
 */
package com.phei.netty.protocol.netty.codec;

import io.netty.buffer.ByteBuf;
import org.jboss.marshalling.ByteOutput;

import java.io.IOException;

/**
 * {@link ByteOutput} implementation which writes the data to a {@link ByteBuf}
 *
 *
 */
class ChannelBufferByteOutput implements ByteOutput {

	private final ByteBuf buffer;

	/**
	 * Create a new instance which use the given {@link ByteBuf}
	 */
	public ChannelBufferByteOutput(ByteBuf buffer) {
		this.buffer = buffer;
	}

	@Override
	public void close() throws IOException {
		// Nothing to do
	}

	@Override
	public void flush() throws IOException {
		// nothing to do
	}

	@Override
	public void write(int b) throws IOException {
		buffer.writeByte(b);
	}

	@Override
	public void write(byte[] bytes) throws IOException {
		buffer.writeBytes(bytes);
	}

	@Override
	public void write(byte[] bytes, int srcIndex, int length) throws IOException {
		buffer.writeBytes(bytes, srcIndex, length);
	}

	/**
	 * Return the {@link ByteBuf} which contains the written content
	 *
	 */
	ByteBuf getBuffer() {
		return buffer;
	}
}
